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Katen [24]
4 years ago
5

Solve for x. 3^x−1=9^x+2 Enter your answer in the box.

Mathematics
1 answer:
slava [35]4 years ago
4 0

Answer:

-5 =x

Step-by-step explanation:

3^(x-1) = 9^(x+2)

Replace 9 with 3^2

3^(x-1) = 3^2^(x+2)

We know that a power to a power means the powers are multiplied

a^b^c = a^(b*c)

3^(x-1) = 3^(2x+2)

When the bases are the same, the powers have to be the same

x-1 = 2x+4

Subtract x from each side

x-x-1 =2x-x+4

-1 =x+4

Subtract 4 from each side

-1-4 =x+4-4

-1-4 = x

-5 =x

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The ravens scored 13 more than three times number points that the bengals scored in their last game. If the ravens scored 40 poi
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The score of Raven is 9 points

<em><u>Solution:</u></em>

Let the point scored by bangal be"x"

Score of Raven = 40 points

Given that,

The ravens scored 13 more than three times number points that the bangals scored in their last game

Score of raven = 13 + 3(score of bangal)

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3 years ago
A baseball team's total wins and losses for one season is 162. The number of wins is 6 less than 2 times the number of losses. W
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Answer:

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Step-by-step explanation:

Let the total wins be x

Let the total loss be y

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x + y = 162 ....... 1

If the number of wins is 6 less than 2 times the number of losses, this is expressed as;

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Now, If the number of wins is 6 less than 2 times the number of losses this is expressed as;

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